22352047 has 6 divisors (see below), whose sum is σ = 22728264. Its totient is φ = 21981960.

The previous prime is 22351993. The next prime is 22352051. The reversal of 22352047 is 74025322.

It is a de Polignac number, because none of the positive numbers 2^k-22352047 is a prime.

It is a super-2 number, since 2×22352047² = 999228010180418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22352347) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 718 + ... + 6724.

It is an arithmetic number, because the mean of its divisors is an integer number (3788044).

Almost surely, 2^22352047 is an apocalyptic number.

22352047 is a deficient number, since it is larger than the sum of its proper divisors (376217).

22352047 is an frugal number, since it uses more digits than its factorization.

22352047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6129 (or 6068 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 22352047 is about 4727.7951520767. The cubic root of 22352047 is about 281.6906513350.

Adding to 22352047 its reverse (74025322), we get a palindrome (96377369).

The spelling of 22352047 in words is "twenty-two million, three hundred fifty-two thousand, forty-seven".